interaction

[ in-ter-ak-shuhn ]

noun

1. reciprocal action, effect, or influence.
2. Physics.
   1. the direct effect that one kind of particle has on another, in particular, in inducing the emission or absorption of one particle by another.
   2. the mathematical expression that specifies the nature and strength of this effect.

interaction

/ ˌɪntərˈækʃən /

noun

1. a mutual or reciprocal action or influence
2. physics the transfer of energy between elementary particles, between a particle and a field, or between fields See strong interaction electromagnetic interaction fundamental interaction gravitational interaction weak interaction electroweak interaction

Derived Forms

• ˌinterˈactional, adjective

Other Words From

• inter·action·al adjective

Word History and Origins

Origin of interaction¹

First recorded in 1825–35; inter- + action

Example Sentences

One specialized subset of transcription initiation sites the group found was in root nodules, a structure on legumes' roots that harbors interaction between the plant and Rhizobia bacteria.

From Science Daily

“We need a new approach to our digital interactions that recognizes the fundamental rights of individuals to safeguard their bodily data, an issue that speaks directly to human autonomy and dignity,” Keserű said.

From Los Angeles Times

The Yakimovich group "Machine Learning for Infection and Disease" aims to understand the complex network of molecular interactions that is active after the body has been infected with a pathogen.

From Science Daily

The nature of this interaction leads to infinite possibilities for light to exist and propagate, or travel, through its surrounding environment.

From Science Daily

She said patients had reported "very positive" interactions with PAs, but she had particular concerns about the fact patients were not always told or made aware they were being seen by a PA.

From BBC

Related Words

• communication
• cooperation
• synergy